Leonid Beresnev

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Darmstadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Quantum cryptography system for a secure transmission of random key...
- Patent number 6,748,081
- Issue date Jun 8, 2004
- Deutsche Telekom AG
- Wolfgang Dultz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device for the local attenuation of the light intensity in the fiel...
- Patent number 6,636,278
- Issue date Oct 21, 2003
- Deutsche Telekom AG
- Wolfgang Dultz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of preparing a pyroelectric mixture and pyroelectric device
- Patent number 5,833,833
- Issue date Nov 10, 1998
- Deutsche Telekom AG
- Wolfgang Dultz
- H01 - BASIC ELECTRIC ELEMENTS